Efficiency of integrated waveguide probes in the detection of fluorescence and backscattered light

N. Ismail, F. Sun, F. Çivitci, Kerstin Worhoff, R.M. de Ridder, Markus Pollnau, A. Driessen

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

Integrated optical probes for detecting backscattered light in, e.g., Raman spectroscopy show desirable characteristics compared to conventional optical fiber probes, although the latter ones may have better collection efficiency in many cases. Major advantages of integrated probes include reduced size; reduced background noise due to scattering in the probe because of reduced propagation length; potential for monolithic integration with filters and spectrometers; very small collection volume, providing high spatial resolution; and polarization maintenance. We demonstrate that when scattered light needs to be collected from a thin layer close to the probe surface, integrated probes can have better collection efficiency than fiber probes do. We modeled a multimode integrated waveguide probe by adapting an analytical model that had been developed for fiber probes. The model was extended in order to account for arbitrary waveguide geometries and a low number of discrete waveguide modes compared to the quasi-continuum of modes in a typical multimode fiber. Using this model we compared the collection efficiencies of integrated and fiber probes for a thin scattering sample. We found that the integrated probe has a higher collection efficiency for scattering layer thickness and probe-to-layer distance both smaller than ~100 um.
Original languageUndefined
Title of host publicationPhotonics West
EditorsIsrael Gannot
Place of PublicationBellingham, WA, USA
PublisherSPIE - The International Society for Optical Engineering
Pages755903
Number of pages5
ISBN (Print)9780819479556
DOIs
Publication statusPublished - Feb 2010

Publication series

NameProceedings of the SPIE
PublisherSPIE, the international Society for Optical Engineering
Volume7559
ISSN (Print)0277-786X

Keywords

  • METIS-270763
  • Spectroscopy
  • Waveguides
  • Probes
  • EWI-17681
  • Fibers
  • IR-70413
  • IOMS-PIT: PHOTONICS INTEGRATION TECHNOLOGY
  • Scattering

Cite this

Ismail, N., Sun, F., Çivitci, F., Worhoff, K., de Ridder, R. M., Pollnau, M., & Driessen, A. (2010). Efficiency of integrated waveguide probes in the detection of fluorescence and backscattered light. In I. Gannot (Ed.), Photonics West (pp. 755903). [10.1117/12.839910] (Proceedings of the SPIE; Vol. 7559). Bellingham, WA, USA: SPIE - The International Society for Optical Engineering. https://doi.org/10.1117/12.839910
Ismail, N. ; Sun, F. ; Çivitci, F. ; Worhoff, Kerstin ; de Ridder, R.M. ; Pollnau, Markus ; Driessen, A. / Efficiency of integrated waveguide probes in the detection of fluorescence and backscattered light. Photonics West. editor / Israel Gannot. Bellingham, WA, USA : SPIE - The International Society for Optical Engineering, 2010. pp. 755903 (Proceedings of the SPIE).
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abstract = "Integrated optical probes for detecting backscattered light in, e.g., Raman spectroscopy show desirable characteristics compared to conventional optical fiber probes, although the latter ones may have better collection efficiency in many cases. Major advantages of integrated probes include reduced size; reduced background noise due to scattering in the probe because of reduced propagation length; potential for monolithic integration with filters and spectrometers; very small collection volume, providing high spatial resolution; and polarization maintenance. We demonstrate that when scattered light needs to be collected from a thin layer close to the probe surface, integrated probes can have better collection efficiency than fiber probes do. We modeled a multimode integrated waveguide probe by adapting an analytical model that had been developed for fiber probes. The model was extended in order to account for arbitrary waveguide geometries and a low number of discrete waveguide modes compared to the quasi-continuum of modes in a typical multimode fiber. Using this model we compared the collection efficiencies of integrated and fiber probes for a thin scattering sample. We found that the integrated probe has a higher collection efficiency for scattering layer thickness and probe-to-layer distance both smaller than ~100 um.",
keywords = "METIS-270763, Spectroscopy, Waveguides, Probes, EWI-17681, Fibers, IR-70413, IOMS-PIT: PHOTONICS INTEGRATION TECHNOLOGY, Scattering",
author = "N. Ismail and F. Sun and F. {\cC}ivitci and Kerstin Worhoff and {de Ridder}, R.M. and Markus Pollnau and A. Driessen",
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Ismail, N, Sun, F, Çivitci, F, Worhoff, K, de Ridder, RM, Pollnau, M & Driessen, A 2010, Efficiency of integrated waveguide probes in the detection of fluorescence and backscattered light. in I Gannot (ed.), Photonics West., 10.1117/12.839910, Proceedings of the SPIE, vol. 7559, SPIE - The International Society for Optical Engineering, Bellingham, WA, USA, pp. 755903. https://doi.org/10.1117/12.839910

Efficiency of integrated waveguide probes in the detection of fluorescence and backscattered light. / Ismail, N.; Sun, F.; Çivitci, F.; Worhoff, Kerstin; de Ridder, R.M.; Pollnau, Markus; Driessen, A.

Photonics West. ed. / Israel Gannot. Bellingham, WA, USA : SPIE - The International Society for Optical Engineering, 2010. p. 755903 10.1117/12.839910 (Proceedings of the SPIE; Vol. 7559).

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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AU - Sun, F.

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AU - de Ridder, R.M.

AU - Pollnau, Markus

AU - Driessen, A.

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N2 - Integrated optical probes for detecting backscattered light in, e.g., Raman spectroscopy show desirable characteristics compared to conventional optical fiber probes, although the latter ones may have better collection efficiency in many cases. Major advantages of integrated probes include reduced size; reduced background noise due to scattering in the probe because of reduced propagation length; potential for monolithic integration with filters and spectrometers; very small collection volume, providing high spatial resolution; and polarization maintenance. We demonstrate that when scattered light needs to be collected from a thin layer close to the probe surface, integrated probes can have better collection efficiency than fiber probes do. We modeled a multimode integrated waveguide probe by adapting an analytical model that had been developed for fiber probes. The model was extended in order to account for arbitrary waveguide geometries and a low number of discrete waveguide modes compared to the quasi-continuum of modes in a typical multimode fiber. Using this model we compared the collection efficiencies of integrated and fiber probes for a thin scattering sample. We found that the integrated probe has a higher collection efficiency for scattering layer thickness and probe-to-layer distance both smaller than ~100 um.

AB - Integrated optical probes for detecting backscattered light in, e.g., Raman spectroscopy show desirable characteristics compared to conventional optical fiber probes, although the latter ones may have better collection efficiency in many cases. Major advantages of integrated probes include reduced size; reduced background noise due to scattering in the probe because of reduced propagation length; potential for monolithic integration with filters and spectrometers; very small collection volume, providing high spatial resolution; and polarization maintenance. We demonstrate that when scattered light needs to be collected from a thin layer close to the probe surface, integrated probes can have better collection efficiency than fiber probes do. We modeled a multimode integrated waveguide probe by adapting an analytical model that had been developed for fiber probes. The model was extended in order to account for arbitrary waveguide geometries and a low number of discrete waveguide modes compared to the quasi-continuum of modes in a typical multimode fiber. Using this model we compared the collection efficiencies of integrated and fiber probes for a thin scattering sample. We found that the integrated probe has a higher collection efficiency for scattering layer thickness and probe-to-layer distance both smaller than ~100 um.

KW - METIS-270763

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KW - Probes

KW - EWI-17681

KW - Fibers

KW - IR-70413

KW - IOMS-PIT: PHOTONICS INTEGRATION TECHNOLOGY

KW - Scattering

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M3 - Conference contribution

SN - 9780819479556

T3 - Proceedings of the SPIE

SP - 755903

BT - Photonics West

A2 - Gannot, Israel

PB - SPIE - The International Society for Optical Engineering

CY - Bellingham, WA, USA

ER -

Ismail N, Sun F, Çivitci F, Worhoff K, de Ridder RM, Pollnau M et al. Efficiency of integrated waveguide probes in the detection of fluorescence and backscattered light. In Gannot I, editor, Photonics West. Bellingham, WA, USA: SPIE - The International Society for Optical Engineering. 2010. p. 755903. 10.1117/12.839910. (Proceedings of the SPIE). https://doi.org/10.1117/12.839910